Propane torpedo heaters deliver fast, directional heat for garages, construction sites, and large workspaces. This guide compares five relevant models chosen for their forced-air performance, safety features, and portability. Below is a quick product summary to help you scan options before detailed reviews.
| Product | BTU Range | Best For |
|---|---|---|
| InoKraft MaXheat MH68 | 30,000–68,000 | Small-to-Medium Garages & Shops |
| DEWALT 68,000 BTU Battery Start | ~68,000 | Quieter Job Sites & Battery Start Convenience |
| Mr. Heater MH125FAV | 125,000 | Larger Workshops & Jobsite Tents |
| Mr. Heater 125,000 F271390 | 125,000 | High Output With Quieter Burner |
| L.B. White Tradesman 170 | 125,000–170,000 | Heavy Duty Construction & Large Spaces |
InoKraft MaXheat 68,000 BTU
This model Offers Variable 30,000–68,000 BTU Output and a heavy-duty forced-air fan designed to heat areas up to about 1,600 sq. ft. The adjustable angle and fast-heating fan make it suitable for one- to six-car garages and medium jobsite spaces.
Safety features include overheat auto-shut-off and auto-cut-off protection to reduce gas leak risk. The unit is marketed as CSA certified, and the listing specifies a 10 ft hose and regulator included for immediate propane connection. Noise is described as low, and the forced-air design prioritizes rapid, directional warmth rather than radiative comfort.
DEWALT 68,000 BTU Battery Start
The DEWALT unit Combines a ~68,000 BTU barrel forced-air design with a 20V battery start option for cord-free ignition. The product emphasizes noise reduction technology, claiming quieter operation than many conventional torpedo heaters—useful in jobsite environments where worker communication matters.
Construction uses industrial housing and the heater is listed as CSA certified. The design suits covered patios, garages, and workshops. Included features focus on durability and protection of internal components; ignition convenience appeals to users who prefer battery start versus manual piezo systems.
Mr. Heater MH125FAV 125,000 BTU
This 125,000 BTU forced-air heater is intended for larger workshops and jobsite tents that require high output. The product listing references a torpedo/space heater form factor known for delivering concentrated directional heat to large volumes quickly.
Features commonly associated with this model family include rugged construction and simple ignition systems. For high-demand applications, the model’s output and forced-air delivery make it suited to heating large, open garages and construction areas where quick temperature rise is necessary.
Mr. Heater 125,000 BTU Forced Air
This Mr. Heater model Highlights Quiet Burner Technology that claims about 50% less noise than standard torpedo heaters. It includes a 10 ft hose and regulator and a high-temperature limit switch for added protection.
Quiet burner designs reduce fan and combustion sound, which can be advantageous in occupied workshops. The provided hose and regulator simplify setup. Safety-oriented features such as high-temperature cutoffs are standard for forced-air propane units used in workplaces.
L.B. White Tradesman 170
The L.B. White Tradesman 170 Provides Variable Output From 125,000 To 170,000 BTU, built with heavy-gauge materials for demanding jobsite environments. It is designed for directional heat and a durable combustion chamber for extended field use.
Highlighted attributes include portable design, corrosion-resistant exterior, dependable electronic spark ignition, and long-term reliability for construction heating tasks. The model targets large, open spaces and heavy-duty applications where sustained high BTU delivery is required.
Buying Guide: Choosing The Right Propane Torpedo Heater
Selecting the appropriate propane torpedo heater requires matching BTU output, delivery type, safety features, and portability to your specific workspace. Consider these key factors and comparison perspectives before deciding.
BTU Output And Heating Area
BTU (British Thermal Unit) indicates the heat the unit can deliver per hour. Use BTU to estimate coverage: light insulation and enclosed spaces need fewer BTUs than open or drafty areas. As a rough guide, small garages and workshops often require 30,000–70,000 BTU, while larger shops and tents commonly need 100,000+ BTU. Choose a higher output for rapid temperature recovery or larger volumes.
Forced-Air Versus Radiant Heat
Forced-air torpedo heaters produce fast, directional convective heat using a fan. They are ideal for warming large volumes quickly. Radiant heaters (infrared) heat objects and people directly and work well in semi-enclosed areas without heating the entire air mass. Select forced-air for rapid space heating; choose radiant for personal comfort and lower airflow disturbance.
Indoor-Safe Models And Ventilation
Not all propane torpedo heaters are safe for enclosed spaces. Look for indoor-rated models or those with explicit ventilation guidance. Many high-BTU forced-air units require adequate ventilation because they consume oxygen and produce combustion byproducts. For indoor use, prioritize models with ODS (Oxygen Depletion Sensor), electronic ignition, and clear manufacturer guidance on ventilation and placement.
Safety Features
- Tip-Over Switch: Shuts fuel flow if the unit is knocked over.
- Overheat Auto-Shutoff: Protects against excessive internal temperatures.
- ODS/Low Oxygen Protection: Critical for indoor operation, stops the heater if oxygen levels drop.
- Flame Failure Device: Ensures gas is cut if the flame extinguishes.
Prioritize units with multiple redundant safety systems for workplace environments.
Ignition And Starting Method
Ignition options vary: piezo igniters use a manual button, electronic spark provides reliable starting, and some models offer battery start convenience (useful where power is limited). Consider the reliability of ignition in cold or dusty environments and the availability of replacement batteries or components.
Hose, Regulator, And Fuel Connections
Check whether the heater includes a hose and regulator and the length supplied. For extended reach or larger tanks, confirm compatibility with larger propane cylinders or optional fittings for dual-tank setups. Models with dual-tank connection capability allow for longer runtime without cylinder swaps.
Noise And Work Environment
Torpedo heaters can be loud due to fans and combustion. If working with teams or in noise-sensitive settings, compare quiet burner or noise reduction features. Quieter models may trade off slight efficiency for reduced operational sound.
Durability And Materials
Construction heaters face rough handling. Look for heavy-gauge steel, corrosion-resistant finishes, and sturdy handles or frames. Product reputation for longevity and replacement parts availability is important for long-term cost of ownership.
Portability And Weight
Consider size, weight, and carrying features. Lighter units are easier to reposition, while heavier, higher-output units may require two-person handling. Built-in wheels or lifting handles improve mobility on jobsites.
Certifications And Compliance
Certifications like CSA or UL indicate the heater has met specific safety standards. For commercial or rental use, certification can be required by site rules or insurance policies. Verify local codes and permit requirements for indoor use of propane equipment.
Fuel Efficiency And Runtime
Compare BTU input to fuel consumption rates when available. Higher BTU units consume more propane but can heat spaces faster. For continuous operation, check runtime estimates with your typical cylinder size, or opt for dual-tank arrangements for extended use.
Maintenance And Serviceability
Routine maintenance includes cleaning air intakes, replacing filters if present, inspecting hoses and regulators, and checking ignition components. Choose designs with accessible service panels and widely available replacement parts.
Application-Specific Advice
- Garage/Workshop: Mid-range forced-air units (30k–70k BTU) balance heat and ventilation needs for enclosed spaces.
- Large Jobsite/Outbuilding: High-output units (100k–170k BTU) provide rapid heat for open or high-ceiling areas.
- Temporary Tents/Events: Ensure ventilation and consider radiant heaters if tent walls restrict airflow.
- Quiet Work Areas: Prioritize quiet burner or reduced-noise models for occupied spaces.
Comparison Perspectives
Compare units across multiple dimensions: BTU per lb of propane (fuel efficiency), noise versus output, portability versus durability, and safety features versus indoor suitability. A higher-BTU model might be necessary for large spaces but may require stricter ventilation and handling procedures. Balanced selection targets the minimum BTU necessary to meet heating goals while maintaining safety and reasonable runtime.
Final Practical Tips
- Measure the area and estimate BTU needs before selecting a unit.
- Confirm included accessories (hose, regulator) to avoid additional purchases.
- Follow manufacturer ventilation guidelines and local codes for indoor use.
- Store propane cylinders safely and inspect fuel lines regularly.
- Prioritize models with multiple safety cutoffs for occupied workspaces.